Abstract: We are considering adding field modification requirements to
part 36 - approval requirements for permissible mobile diesel-powered
transportation equipment. The implementation of diesel regulations in
30 CFR parts 7, 36, 57, 72 and 75 has resulted in an increase in
requests from owners of approved equipment, typically Mine operators,
to use modified permissible diesel-powered equipment, including mobile
diesel-powered transportation equipment. These modifications allow
permissible equipment to be modified for Mine-specific use or to comply
with existing diesel standards.